Staff Backend Engineer, Admin Experience

The posting, as Horizon3 wrote it

Get to Know Us

Horizon3 is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by IT Ops/SecOps teams, consulting pentesters, and MSSPs and MSPs.

We are a fusion of former U.S. Special Operations cyber operators, startup engineers & operators, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools and false positives, resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.

What You’ll Do

As a Staff Backend Engineer on the Admin Experience team, you’ll provide hands-on technical leadership for NodeZero’s account administration capabilities. You’ll shape how services and APIs support user access, parent-child account controls, account settings, and related capabilities such as roles, access controls, and audit logs. You’ll lead complex changes to account and authorization models, helping teams preserve secure tenant boundaries while making administration easier for customers. You’ll remain hands-on in implementation and partner across Product and Engineering to set durable technical direction and improve production readiness.

Responsibilities

• Set technical direction for backend services and APIs supporting user access, account hierarchies, settings, and administration workflows.
• Lead architecture and implementation of cross-cutting work involving authorization, tenant boundaries, and safe evolution of customer account models.
• Remain hands-on in production code while guiding design decisions, technical tradeoffs, and delivery across the team.
• Raise standards for API quality, testing, security, observability, rollout practices, and operational readiness.
• Partner with Product and adjacent teams to align interfaces and keep administration capabilities consistent across NodeZero.
• Mentor and influence engineers through design reviews, code reviews, pairing, and clear technical documentation.
• Help diagnose complex production issues and drive improvements that prevent recurrence.

What You’ll Bring

• Ability to lead through ambiguity, break down broad problems, and align multiple teams around a practical technical direction.
• Strong judgment balancing security, customer experience, scalability, main

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work models depending on role and location, including our Chicago office, where some roles require regular in-office presence.

• Competitive Compensation: We offer competitive salary, equity and benefits. Our benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave.

You Belong Here

Horizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, hair length or any other legally protected status by law.

Our commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth.

We welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice.

Application Note

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